Elevator assembly with extendable sill

a technology of extending sills and assembly parts, which is applied in the direction of mine lifts, transportation and packaging, building lifts, etc., can solve the problems of occupant ride quality problems, car guidance system component wear and tear, and ride quality declines

Inactive Publication Date: 2006-11-02
OTIS ELEVATOR CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the running clearance is minimized, ride quality is decreased and car guidance system component wear is increased.
If the running clearance is maximized, ride quality is improved but a large operating gap between the elevator car and a landing is created, which is undesirable.
One problem with th

Method used

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  • Elevator assembly with extendable sill
  • Elevator assembly with extendable sill
  • Elevator assembly with extendable sill

Examples

Experimental program
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Embodiment Construction

[0034] As seen in FIGS. 1A and 1B, an elevator assembly 20 is mounted within a hoistway 22 for movement between landings 24 (only one is shown). An operating gap 26 is maintained between an exterior surface 28 of an elevator car 30 and hoistway walls 32. The operating gap 26 is large enough to provide sufficient running clearance between the hoistway walls 32 and the elevator car 30 as the elevator assembly 20 moves within the hoistway 22 between landings 24.

[0035] The elevator car 30 includes an elevator door assembly 34 that moves between open and closed positions. When the elevator car 30 stops at one of the landings 24 to load or unload passengers or cargo, the elevator door assembly 34 aligns with a landing door assembly 36. A sill 38, supported by the elevator car 30, extends outwardly from the car 30 toward the landing door assembly 36 to bridge the operating gap 26 between the elevator door assembly 34 and the landing 24. The sill 38 extends out from underneath the elevator...

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PUM

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Abstract

An elevator (20) includes a sill (38) that extends out from underneath an elevator car (30) to bridge an operating gap (26) between the car (30) and a landing (24). When an elevator door (34) is aligned with a landing door (36), the sill (38) extends outwardly from the car (30) until the sill (38) makes contact with a landing structure (40). A locking mechanism (52) securely locks the sill (38) to the landing structure (40). In one example, once proper sill alignment and locking engagement occurs, a door moving mechanism (50) is released and the elevator (34) and landing (36) doors open.

Description

1. FIELD OF THE INVENTION [0001] This invention generally relates to an elevator with an extendable sill that bridges an operating gap between an elevator car and a landing. More particularly, this invention relates to a sill that extends outwardly underneath an elevator door to engage a landing structure. 2. DESCRIPTION OF THE RELEVANT ART [0002] Elevator cars move upwardly and downwardly within a hoistway between landings. Sufficient running clearance must be maintained between the exterior of the elevator car and the hoistway walls to allow the car to move quickly and efficiently within the hoistway. If the running clearance is minimized, ride quality is decreased and car guidance system component wear is increased. If the running clearance is maximized, ride quality is improved but a large operating gap between the elevator car and a landing is created, which is undesirable. [0003] One solution has been to use a pendulum car system. The pendulum car operates with an increased ru...

Claims

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Application Information

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IPC IPC(8): B66B13/02B66B13/12B66B13/16B66B13/24B66B13/28B66B13/30B66B17/34
CPCB66B13/24B66B17/34B66B13/301B66B13/28B66B13/308
Inventor MILLER, ROBIN MIHEKUNGALANTE, TIMOTHY P.
Owner OTIS ELEVATOR CO
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